Change-speed transmission-gear.



- J. M. WORTH. CHANGE SPEED TRANSMISSION GEAR.

APPLICATION I'ILI-ID JUNE 28, 1907.

Patented Jan. 4, 1910.

3 SHEETS-SHEET 1.

J.M. WORTH.- CHANGE SPEED TRANSMISSION GEAR.

- APPLICATION FILEDJUNB 28, 190 7.

945,070. v 1 g PatentedJanA, 1910.

. v ml 3 SHEETSfSHEET 2.

l 5 F f J. M. WORTH.

CHANGE SPEED TRANSMISSION GEAR.

APPLICATION FILED JUNE 28, 1907.

3 SHEETS-SHEET 3.

mullilnmlm /////I/llk Patented Jan.4, 1910. x

macro.

' To all whom it may concern:

UNiTED SAES PATENT OFFICE. I

JAMES M. WORTH, OF EVANSVILLE, INDIANA.

' GHANGE-SPEED TRANSMiSSIDN-GEAR;

lie it known that; I, James M. \VoIrrn, a citizen of the United States, and a resident of the city of l lvansvillc, in the county of Yandcrlnn'g and State of Indiana, have invented certain new and useful Improvements in (hangoSpced'lransmission-Gears; and do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, and to the lctterscf reference. marked thereon, which form a part of this specification.

This invention relates to improvements in transmission gears and more particularly to a transmission gear adapted among other purposes for use in transmitting the drive of the motor, in vehicle propulsion. In devices for this purpose many different types of gears have been employed, some of which are complicated and of numerous parts requiring frequent and exact adjustment, lacking which they fail for the purpose for which installed.

' direct drive of the engine for hlgh speed.

The object of this invention is to provide a transmission gear adapted to provide a high and a low speed drive ahead and a reverse, and in which when the vehicle has attained suflicient momentum on the low speed drive the transmission shaft is coupled direct with the engine or drive shaft, thus utilizing the It is a further object of the invention to provide a transmission of the class described adapted to exert great power in starting or reversing and in which the respective frictional elements are adapted to operate as a brake when desired to check the movement of the vehicle in either direction.

Finally it is an object of my invention to.

provide a cheap and simple mechanism of the class described adapted for general'use for vehicle propulsion, and for many other purposes, and of such strong and durable construction as to practically eliminate transmission troubles, and, also'to provide mech anism for operating the transmission whereby case and quickness of control is assured.

The invention consists in the matters hereinafter described and-more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a fragmentary top plan View of a chasis provided with Specification of Letters Patent. Patelntetl Jan d, 1913. I Applicatioiifiled June 28, 1907.

Serial No. 381,355.

a frictional transmission device embodying my invention. Fig. 2 is an enlarged side ele vation thereof. Fig. 3 is an enlarged 'hori-' zontal section taken centrally of the transmission. Fig. at is an enlarged section taken ouline H of Fig. 1. Fig. 5 is; a top plan view showing toothed gears employed in side sills or frame members of a chasis provided as shown, with transverse sills aa, as is usual, between which and extending longitudinally of the chasis are arallel center sills a and a Sn porte upon said center sills a and a is t e motor indicated asa whole by B, and which may be of any suitable kind orconstruction but which in the drawings is shown as an internal combustion engine. Leading r'earwardly from the crank case is the engine shaft I), as shown in Fig. 3 on which is rigidly secured a beveled friction member C, of relatively large size the smaller face of which is directed rearwardly and which is the balance wheel of the engine. Journaled rotatively at the axis of said friction member C, is the driven shaft C which leads to any suitable differential on the rear axle (not shown) if employed in a shaft drive vehicle.

as shown, in the resent illStilIlCQflIlCLWhlCll, of course. may )8 provided with any suit. able universal joint at points; The rear end a of the center sill (p is wider than the center sill a and is supported on the sill or beam Rigidly se cured beneath said'sill a at the rear of the driving friction member 0 is a sleeve D,in which is ournaled a shaft d, extending transversely of the vehicle and provided on any suitable point or its inner end at the inner side of said beam (2 with a conical friction member D',-cor.

responding with and approximately the same size as the friction member C, andadapted to coact therewith, and adaptedto slide into or out of engagement therewith by longitudinal movement of its shaft in said bearing sleeve D. The shaft d iare duced in diameter at its inner end, passing through the hub of said friction member D and rigidly secured on its extremity which projects therethrough is a conical friction member D of smaller size, which projects axially therefrom. Said shaft dZis provided at its outer end with a ball or any suitable anti-friction bearing,- indicated as a Whole. by (P, which may be of any desired type or character.

The sleeve or housing D is provided with a transverse aperture therethrough, through which extends a sliding wedge bar E which at its inner end is relatively narrow and is provided on its outer end with an incline e. As shown, a bearing block ef is interposed between the ball bearing d and said wed e bar so that when said bar is forced inward y the incline thereon forces the shaft d inwardly transversely the frame bringing the friction face thereon with the driven friction member D into positive engagement with the driving" friction member C, as shown in Fig. 1, while retraction of said bar permits said friction member to disengage the driving friction member as shown in Figs. 3 or 5. Feathered on the shaft C is an expansion or other suitable clutch F adapted to fit in a suitable recess in the rear face of the driving friction member C to couple the driven shaft direct with the drive shaft. Secured on the hub of said clutch is a sleeve f, provided with a peripheral groove in which engage suitable trunnions f on the upwardly directed. yoke. arms 7, secured on a shifting arm F. I

Feathered to slide on the shaft 0 and integral with a sleeve 9 and each other, as shown, are double inwardl facing conical friction gears comprising a ront rearwardly facing friction memberG, and a forwardly facing friction member G between which the conical friction member D projects in position to be engaged by either. Journaled in suitable standards h--hh and h, rigidly secured on and depending below the center sills a and a are transverse rock shafts H and H. Securedon one end (if each adjacent the side frame member ,A, is

a transverse bar 11: and if respectively, each of which is )rovidcd on its extremities with an outward y directed stud, provided with a roller and indicated on the shaft H b h and h and on the shaft H. by )5, and h Slidable in suitable standards I and I secured on the under side. of the sill A is a shifting bar I rovided with inclined faces z'z" and a apted to engage the rollers.

h-',hh and'h respectively. The shifting arm F for the clutch is rigidly secured atits lower end on the shaft H, as shown in Fig. 6, as is also a lever K, as shown in Fig.

4 and to, the up er end of which the wedge bar E is pivotal y engaged.

As show n'a shifting lever L adapted to be manually actuated/is pivotally engaged on the frame member A, and provided with asuitable detent Z and a segment Z to hold the same in adjusted position, and at its lower the roller h, engaging on the incline orangular face i, and at the same time forces the slide bar E, inwardly thereby pushingoutwardly the shaft d, with its friction member 'I) bringing said friction member into engagement on the driving friction member C. At the same time, the roller 'h engages on the incline 1?, thereby drawin the double friction member GG' longitu inally of the driven shaft and bringing the friction face G into driving engagement with the conical friction member D Inasmnchas the drive is from the small to a lar er friction member a low speed is afforded easy start for the machine. Having gained the desired initial speed, the'hand lever L is shifted. rearwardly Figs. 2 and. ll

bar Itt rowing the clutch into engagement and at the same time retracting the lever K to withdraw'the'wedge bar E as shown in Figs. 3 and 4, t hus permitting the friction member D 'to retract from the driving'friction member. This movement releases the to the. position shown in- I hen'this occurs, the roller h? enga' s on the incline z" of the shifting which insures an pressure exerted by the shaft H, on the transmitting friction member Gr,- retracting the same to neutral position as shown in Fig. 3. When so adjusted the drive is direct from the engine shaft and in consequence all frictional elements are out of engagement excepting the clutch. In reversing the lever L is thrown forwardly, shiftin the bar I so that the roller 72. engages on t e incline i,"

the roller it engages on the'incline 2' and the roller h engages on the incline 'i as shown in Fig. 7. This is neutral osition as shown in plan view 1n Flg, 1. 'forwardly now brings the frict on member G into engagement with'the friction member D ,;reversin the drive and a shift of the lever forces t e friction members to normal, then forward adjustment of the lever gives slow speed aheadas before described. When thus adjusted the shift from forward to reverse is instantaneous permitting great facility of operation in close quarters. course,- tooth gears may be used if desired for either the driving and the driven friction members or for the reducing and the transmittingfriction members or all the frict on ifting the lever .tionwit h a driving shaft, of a friction mem her thereon, a driven shaft, a clutch thereon adapted to engage the friction member, a driven frictionmeinber adapted to contact the driving friction member, means for simultaneously shiftin said friction members into contacting engagement and shifting the clutch out of operative relation and connected frictionmembers adapted to be driven from said driven friction member.

2. In a transmission device the combination With a driving shaft, of a friction member thereon, a driven shaft, a clutch thereon adapted toengage the friction member, a

driven friction member adapted to contact the aforesaid friction member, means for simultaneously shifting said friction members into contacting engagement and shifting the "clutch out'of operative relation, inwardly facing friction members on the driven shaft, a friction member shifted simultaneously. as the'driven friction member is shifted and extending between the facing friction members, and means for shifting the inwardly facing friction membersone to contact said friction member extending between them for speed ahead.

3. In a device of the class described a driv thereon, a driven shaft, a clutch thereon, in-

wardly facing friction members on said driven shaft, a shaft extending transversely of the aforesaid shafts, a plurality of friction members thereon, mechanism adapted to shift said friction members into operative relation and the clutch out of operative relation for sloiv speed ahead and to shiftthe clutch into operative relation and return the friction members for a different rate ofspeed ahead, said shifting mechanism adapted also to shift said friction nembers andclutch for reverse speed. a

In a. device of the class described the combination itha'driving shaft of a'dri'ven shaft in axial alinement therewith, a fric-' tion member on the driving shaft, a clutch on the driven shaft adapted to frictionally engage the same, inwardly. facing rigidly connected friction members on the driven aforesaid shafts, friction members thereon, one adapted to contact the appropriate friction member of the connected friction members and mechanism adapted for appropriately shifting the friction members and clutch for different rates of speed ahead and for reverse speed.

(3. In a device of the class described the combination with a driving friction member, a driven shaft, rigidly connected friction members thereon, friction members adapted to contact'the driving and driven friction members simultaneously for speed 'in one direction and a clutch on the driven shaft. adapted for frictional engagement with one of the friction members for speed in the same direction.

T. In a device of the class described the combination with a driving friction member, a driven shaft, rigidly connected 'fllC'-,

friction members simultaneously for speed in one direction, a clutch on the driven shaft adapted for frictional engagement with one of the friction members for speed in the same direction, and llleOlltllllSDlfOl shifting the friction members into engagement for reverse speed when the. clutch 18 out of oper ative position. v

,8. In a device of the class described the combination with a driven shaft of adriving friction member, driven friction members having their axis in alinement therewith, friction members adapted to operatively connect the aforesaid driving and driven friction members and a clutch connecting the driving friction member and the driven shaft for speed in one direction.

9. In a device of the class described a driving member, a driven shaft, rigidly connected driven members thereon, a plurality of transmission members one adapted to engage the driving member, and the other either of the driven members and mechanism for siii'iultaiieonsly shifting the transmission members into engagement with the driving and driven members.

combination Witha driving member of a shaft, a shaft extending at an angle with the,

10. In a device of the class described the Y driven shaft, rigidly connected driven niembers thereon, a plurality of transmission members one adapted to engage the driving member, and the other either of the driven gag'ement with the driving and driven members, and av clutch secured to the driven shaft adapted to engage the driving mem ber for speed in one direction.

11. ln a device of the class described the combination with the engine shaft, of a 5 member rotatable therewith, an axially alined driven shaft, friction members movable thereon one of which is adapted to frict onally engage the rotatable member on the engine shaft for engine shaft s eed, and

friction members adapted to a 0rd frictional engagement between said member ro- 'tated by the engine shaft and the other friction members'on thedriven shaft for speed in either direction.

12. In a device of the class described the combination with a driving friction member, of simultaneously rotatable friction members of different sizes jonrnaled transversely thereof, the larger of which is adapted to contact ,the driving frictionmember and driven friction members, one adapted to en-.

' gage the driving friction member when said larger friction member is not 1n engagement with the driving friction member and the others adapted to frictionally engage the smaller of the transversely journaled friction members when said larger friction member is engaging the driving friction member.

13. In a device ofthe class described the combination with a driven shaft of a plurality of frictionelements thereon, a driving clement adapted to engage one of the elements on the driven shaftand means adapted to operatively connect-any ofvthe remain- ;-!5 ing elements on the driven shaft with the driving element; 7

14. In transmlsslon mechanism the com-- bination with a driving friction member, of'

a shaft journaled transversely thereof, .21

4o friction member thereon adapted to contact the driving friction member, a plurality of driven friction members, one of which is adapted to be directly coupled with the driving friction member and a friction member on the transverse shaft adapted to enga e any, of

15. In a device of the class described the combination with the engine shaft of a fricthe other driven friction memtion member secured thereon, a driven shaft in axial alinement therewith, a plurality of driven friction members splined thereon, a shaft journaled transversely of the driven shaft, a large friction member-"thereon '55 adapted to frictionally engage the driving frrctionmember, a small frlction' member thereon ada ted simultaneously to engage one of the friction member.

-16. In a device 0 the classdescribed the combination with a drivin friction member, a driven shaft, a clutch sli able on the driven riven friction members, and a. clutch slidable on the driven shaft adapted to engage the, drivin shaft adapted to engage the driving friction member, a plurality of friction members ,slidable on said shaft, friction members having their axis transversely of the axisof the driven friction members adapted one to engage one of the slidable friction members, a shifting bar and mechanism operated: b

movement of said bar to simultaneously shi t the clutch and the adjustable friction mem-' bers into and out of operative relation.

17. In a device of the class described the combination with a driving member, a

driven shaft, a clutch adjustable thereon,

driven friction members adjustable on said shaft, friction members adjustable transversely thereof, adapted to operzitively connect the driving member and driven friction members, a shifting bar having i'inclines 01' angular faces and mechanism operated by movement thereof to simultaneously actuate all of the adjustable friction members into operative position and the clutch out of op- 'erative position and to release said adjustv between the other shaft and the rigidly connected friction members, operative connections between one of said shafts and the friction member capable of contacting the driving friction member and means adjusting the shafts to move said friction members into operative relation and tom'ove the clutch correspondingly.

I 19. In a device of the class described a driven shaft a driving friction member, a clutch on the driven shaft adapted to engage the same, driven friction members, friction imembers adapted to afiord operative connections between the driving and the driven friction members, shafts connected with the driven friction members and with the clutch and mechanism for rocking said shaftsfor adjusting the friction members into operative position and to actuatethe clutch.

20, In a device of the class described a driving friction member having a recess therein, a driven shaft, a clutch thereon adapted to fit in said recess, driven friction members on-said driven shaft, a slotted sleeve or housing extending transverselyof the driven shaft, a shaft therein, friction members thereon adapted to afford connections between the driving aiiddri-ven frict1o n members, shafts ournaled below the driven shaft, means operatively connecting one of the same with the driven friction members, means operatively connecting one of said shafts and the clutch, a block extending through the slot in the housing or sleeve for shifting the shaft in the housing, rollers secured on each shaft and means adapted to contact said rollers. thereby adjusting the friction members and clutch intoand out of operative relation.

'21. In a transmission mechanism a driving member, adjustable driven members and simultaneously adjustable transmissionshaft, a driving friction member having a peripheral friction face and an internal frictioii face, a clutch adapted to frictionall engage the internal friction face for she. t

speed, sin'iultaneously adjustable friction members of different diameters, one of which is adapted to contact .said peripheral friction faceof the driving member, and oppositely facing friction members either of which is adapted for adjustment to contact one of thc-sinmllanmnsly adjustable friction members. I

24. I11 a transmission mechanism the combination with alined driving and connected driven friction members and friction members of different diameters adapted to op eratively connect said driving and driven friction'members for speed ahead. or reverse.

25. In a transmission mechanism the combination with a combined balance Wheeland driving friction member. and alined driven friction members of rigidly connected friction members of different diameters adapted to operatively connect said driving and.

driven friction members for speed ahead or reverse, a driven shaft, a clutch, connected thereto adapted to be actuated by the drivin friction member and means adapted toshift thedriven friction member and the friction members of different diameters transversely of each other.

26. In a device for the PLI'YtPQSCS' specified a driven shaft, a plurality o driven mom'- bersthereon, a driving member, connected members adapted to transmit motion from the driving to the driven members and a clutch on the driven shaft adapted to engage the driving member.

27. In a transmission mechanism transmission members siniultaiieously adjustable, a driving member adapted to engage one of the members whereby the other transmission memberis actuated, inwardly facing members bo th adapted to independently engage the other of said simultaneously adjustable transmission members for speed ahead or reverse and means for adjusting the iii- Wardlyfacing members.

28.111 a device of the class descred adjustably connected, inwardly facing driven members, a transmission member extending therebetweeii, a transmission member operatively connected with said transmission member, a driving friction member adapted to contact the last named transmission mem her, a driven shaft and a clutch rigidly secured thereon adapted to be driven directly from the driving friction member.

29.- In a device of the class described a driving. member, inwardly facing driven members, transmission members adapted to alfordconnections between the driving and driven members, shafts below all of said members, operative (JOlll'lQCtlOllS between said shafts and the respective members and means adapted to rock the shafts ineffecting the adjustments.

3D. In a device of the class described the combination with a driving member, a shaft,

driven members thereon, a shaft jonrnzilcd transversely of the aforesaid shaft, members thereon adapted to transmit motion from the driving to the driven members and mechanism for shifting the driven members on their shaft and reciprocating the transverse shaft in effecting the adjustments.

31-. In a transmission device a driving member, connected dl'lVOItlllBl'llbGl'S one for speed ahead and one for reverse, members adaptedto connect said driving and driven members,a cl'utclrada'ptedto engage the driving member, a plurality of shafts, means connectingone of the same with the con nected driven members, ineansconnecting.

the other of said shafts with the clutch, I

means for actuating both of saidshafts and means adapted to operate the members for connecting the driving and driven members 32. In a device of the class described a driving shaft, a driving member driven thereby, a driven shaft, driven n'icnibers thereon, a shaft extending transversely thereof, members thereon for engaging the driving and driven meinbers, a clutch -secured to the driven shaft adapted foradjustment to engage the driving memberon the driving shaft, abar having angular or inclined faces and mechanism actuated by the inclined faces for effecting'the adjust.- ment of the various members.

33. In a device of the class described the combination with a driven shaft of a driving member, a clutch on the driven shaft adapted for engagement with the driving member, 'a shaft extending transversely thereof, a slotted sleeve or housing in which the shaft is j ournaled, members 011 said sha-ft one adapted to engage the driving member, driven members adapted to contact the other of said members, a plurality of shafts, independent connect-ions between the appropriate shaft to operate the driven members and clutch, a pair of antifriction rollers on each, shaft, a bar provided with angular faces upon-which the antifriction rollers engage in operating the shafts, and a wedge bar 0 erated by one of the shafts and extending through the slot in the'sleeve for actuating the transverse shaft.

84:. A transmission device comprising rotatable driven members, a driving member, a plurality of members all on the same side of said driving and driven members and ada t ed to afiord driving connections there etween.

35. A transm ssion device comprising a. driven shaft, rotatable driven members driven thereby, a driving member, a plurality of members all on the same side of said driving and driven members adapted to afford driving connections therebetween, rock shafts adapted to adjust the members and a clutch secured in the driven shaft also operated by one of said rock shafts to engage the driving member.

36. In a transmission devlce the combination with members for transmitting power of an adjusting bar having angular or inclined faces, rock shafts, bars secured to the corresponding ends of each, anti-friction rollers on each bar adapted to contact the angular faces, of the adjusting bar, transmission members, operativeconnections between the same and the shafts adapted by adjustment of said adjusting bar to effect the various adjustments of the transmission members, and a clutch adapted for adjustment by said adjusting barfor speed in one direction.

37. In a device of the class described the combination with a driving member and connected, simultaneously movable driven members operated therebfy, an adjustin bar having cam faces, sha ts journaled ielow the driving and driven members, transversebars rigidly secured thereto, friction rollers on said bars adapted to contact the cam faces and mechanism operated by movement of' the shafts for adjusting the members for various speeds ahead and reverse.

38. In a device of the class described a of the transmission shaft an same longitudinally.

43. In'a device of the class described a.

driven shaft, inwardly facin driven meanbers thereon, a driving memier embracnw a combined balance wheel, frr ion face and clutch, transmission members, *one adapted to engage the friction face of the driving member and the other transmission member adapted to be engaged by one of the inwardly facing driven members, and a clutch on the driven shaft adapted-to engage the aforesaid clutch.

39. In a transmission mechanism a driving shaft, a combined balance wheel, driving friction member and driving clutch thereon, transmission members, one adapted toengage the driving friction member, a driven shaft, driven members thereon adapted to engage the other of the transmission members and a clutch on the driven shaft adapted to engage the clutch on the driving shaft.

40. In a device of the class described a double driving friction member havin beveled faces, a transmission member a apted for contacting engagement with said faces, means for driving the transmission member, adriven shaft. and a clutch secured thereto for high speed ahead.

41.. In a device of the class described a driven shaft, a member slidable thereon havmg friction faces, a friction member extendadapted to contact any of said; friction faces, mechanism for simultaneously shifting the transverse friction member and the slidable member for the transverse friction member to engage the appropriate friction face of the slidable member and a" clutch on the driven shaft adapted to be operativcly connected with the driveshaft for driving the driven shaft at high speed.

In a device of thecl'ass described a driven shaft, friction members sl idahle thereon, a reciprocating transmission shaft, friction members thereon and adjustable thereing transversely of the aforesaid member with, a driving friction member and a slid-.

ing block having a camfor en aging one end adjustmg the driven shaft, friction members slidable thereon, an adjustable transmission shaft, friction members thereon and adjustable therewith, a sliding blockfor adjusting the transmission shaft, a driving friction member and a clutch on the driven shaft adapted to engage the driving friction member.

In testimony whereof 'I havehereunto subscribed my name in the presence .of two subscribing witnesses.

JAMES M. WORTH. Witnesses:

K. E. HANNAH, J. W. AVNQELLV 

